1.cotton canvas used for bag,gloves 2.canvas factory directly 3.past canvas ISO9001 certificate 4.the biggest canvas exporter We,Shijiazhuang NingBo Canvas And Tarpaulin Products Co.,Ltd. is a professional manufacturer of 100% waterproof cotton canvas and we have about 20 years history in this industry. With the high quality and best service, our company gained good reputation in the world. ...